Wire up the Mesa shader disk cache into Panfrost. Coupled with the
precompiles from the previous patch, this should greatly reduce shader
recompile jank.
This is a bare bones implementation. Obvious future work includes:
- Caching internal (outside of Gallium) shaders
- Implement finalize_nir to reduce on disk size of shaders
That doesn't need to come in this patch.
This patch does shuffle some allocation patterns around to avoid extra
nir_shader_clones, but the result should be pretty clean.
---
Consider dEQP-GLES31.functional.ssbo.layout.basic_unsized_array.* in the CTS.
With a cold cache:
44.11user 0.66system 0:45.44elapsed 98%CPU (0avgtext+0avgdata 267804maxresident)
k 0inputs+0outputs (130major+74725minor)pagefaults 0swaps
But with this commit and a warm cache:
4.07user 0.35system 0:04.56elapsed 96%CPU (0avgtext+0avgdata 211012maxresident)
k0inputs+0outputs (1major+49489minor)pagefaults 0swaps
That's an 11x improvement!
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19363>
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